Depending on what kind of security measures are implemented, D would definitely be a contender. However, B is also something to take into consideration. I would answer D.<span />
        
                    
             
        
        
        
Well potential energy is energy that is in a object while its not moving so i would go your third option 
        
                    
             
        
        
        
That answer would be B hope it helps
        
                    
             
        
        
        
Some of the disadvantages of using layered protocols are the redundancy and overall lower performance.
Reimplementing everything from remote and wired to connectionless and association situated application correspondence, with each ringer and shriek of BGP, MPLS, multicast steering and so on would be a gigantic endeavor and potentially unmanageable in this solid across the board convention. I could envision specialty utilize situations where most extreme execution is imperative most importantly where an exceptionally basic framework might be wanted.
        
             
        
        
        
The answer might be wrong and you could get caught